Does the ultrasonic activation of calcium silicate-based sealers affect their physicochemical properties?

Q2 Medicine

Brazilian dental journal Pub Date : 2022-11-01 DOI:10.1590/0103-6440202205100

Isadora Ames Silva, Gabriel Barcelos Só, Theodoro Weissheimer, Aline Mendes, Lina Naomi Hashizume, Marcus Vinícius Reis Só, Ricardo Abreu Da Rosa

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引用次数: 1

Abstract

This study aimed to evaluate the influence of ultrasonic activation (UA) on the physicochemical properties of hydraulic calcium silicate-based sealers. Nine experimental conditions were created based on the hydraulic calcium silicate-based sealers (Bio-C Sealer, Sealer Plus BC and Bio Root RCS) and the ultrasonic activation (no activation [NA], 10 seconds, and 20 seconds). Then the experimental groups were BC-NA, BC-10, BC-20, SPBC-NA, SPBC-10, SPBC-20, BR-NA, BR-10, and BR-20. Activation was performed with an ultrasonic insert 20/.01. The mold for the physicochemical analysis was filled and evaluated according to the ANSI/ADA specification nº. 57: initial and final setting time, flow, radiopacity and solubility. Tests were also performed to evaluate pH and calcium ion release with experimental periods of 1, 24, 72, and 168 hours with a pH meter and colorimetric spectrophotometer. Data were analyzed by one-way analysis of variance and post-hoc Tukey tests. The significance level was set at 5%. The time of UA progressively delayed the initial setting time for all hydraulic calcium silicate-based sealers (p < 0.05). Twenty seconds of UA increased the mean flow values of Sealer Plus BC and Bio-C Sealer compared to NA (p < 0.05). UA did not influence the radiopacity and solubility of the tested sealers (p > 0.05). UA for 20 seconds enhanced the pH levels and the calcium ion release of Sealer Plus BC and Bio-C Sealer at 168h (p < 0.05). UA for twenty seconds interferes with some physicochemical properties of hydraulic calcium silicate-based sealers.

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超声波活化硅酸钙基封口剂对其理化性能有影响吗?

本研究旨在评价超声活化(UA)对液压硅酸钙基封口剂理化性能的影响。以液压硅酸钙基封口剂(Bio- c Sealer, Sealer Plus BC和Bio Root RCS)和超声波激活(无激活[NA]， 10秒和20秒)为基础，创建了9个实验条件。然后实验组依次为BC-NA、BC-10、BC-20、SPBC-NA、SPBC-10、SPBC-20、BR-NA、BR-10、BR-20。用20/ 0.01的超声插入进行激活。根据ANSI/ADA规范nº填充和评估进行理化分析的模具。57:初凝和终凝时间、流量、透光度和溶解度。用pH计和比色分光光度计测定pH值和钙离子释放，实验时间分别为1、24、72和168小时。数据分析采用单因素方差分析和事后Tukey检验。显著性水平设为5%。UA时间逐渐延迟了所有硅酸钙基液压封口剂的初始凝固时间(p < 0.05)。与NA相比，20秒UA使Sealer Plus BC和Bio-C Sealer的平均流量值增加(p < 0.05)。UA对所测封口剂的透光度和溶解度没有影响(p > 0.05)。在168h时，UA作用20秒可提高Sealer Plus BC和Bio-C Sealer的pH水平和钙离子释放量(p < 0.05)。20秒的UA会干扰液压硅酸钙基封口剂的一些物理化学性能。

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来源期刊

Brazilian dental journal Dentistry-Dentistry (all)

CiteScore

2.20

自引率

0.00%

发文量

审稿时长

12 weeks

期刊介绍： Brazilian Dental Journal, publishes Full-Length Papers, Short Communications and Case Reports, dealing with dentistry or related disciplines and edited six times a year.